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BookType.java
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121 lines (108 loc) · 4.57 KB
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package com.action;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.actionForm.BookTypeForm;
import com.dao.BookTypeDAO;
public class BookType extends HttpServlet {
private BookTypeDAO bookTypeDAO = null;
public BookType() {
this.bookTypeDAO = new BookTypeDAO();
}
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
String action = request.getParameter("action");
System.out.println("\nbookType*********************action=" + action);
if (action == null || "".equals(action)) {
request.setAttribute("error", "您的操作有误！");
request.getRequestDispatcher("error.jsp")
.forward(request, response);
} else if ("bookTypeAdd".equals(action)) {
bookTypeAdd(request, response);
} else if ("bookTypeQuery".equals(action)) {
bookTypeQuery(request, response);
} else if ("bookTypeModifyQuery".equals(action)) {
bookTypeModifyQuery(request, response);
} else if ("bookTypeModify".equals(action)) {
bookTypeModify(request, response);
} else if ("bookTypeDel".equals(action)) {
bookTypeDel(request, response);
}
}
/*********************** 添加图书类型信息 **************************/
private void bookTypeAdd(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
BookTypeForm bookTypeForm = new BookTypeForm();
bookTypeForm.setTypeName(request.getParameter("typeName"));
bookTypeForm.setDays(Integer.parseInt(request.getParameter("days")));
int a = bookTypeDAO.insert(bookTypeForm);
if (a == 0) {
request.setAttribute("error", "图书类型信息添加失败！");
request.getRequestDispatcher("error.jsp")
.forward(request, response);
} else if (a == 2) {
request.setAttribute("error", "该图书类型信息已经添加！");
request.getRequestDispatcher("error.jsp")
.forward(request, response);
} else {
request.getRequestDispatcher("bookType_ok.jsp?para=1").forward(request,
response);
}
}
/*********************** 查询全部图书类型信息 **************************/
private void bookTypeQuery(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
String str = null;
request.setAttribute("bookType", bookTypeDAO.query(str));
request.getRequestDispatcher("bookType.jsp")
.forward(request, response);
}
/*********************** 查询修改图书类型信息 **************************/
private void bookTypeModifyQuery(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
BookTypeForm bookTypeForm = new BookTypeForm();
bookTypeForm.setId(Integer.valueOf(request.getParameter("ID")));
request.setAttribute("bookTypeQueryif", bookTypeDAO
.queryM(bookTypeForm));
request.getRequestDispatcher("bookType_Modify.jsp").forward(request,
response);
}
/*********************** 修改图书类型信息 **************************/
private void bookTypeModify(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
BookTypeForm bookTypeForm = new BookTypeForm();
bookTypeForm.setId(Integer.parseInt(request.getParameter("id")));
bookTypeForm.setTypeName(request.getParameter("typeName"));
bookTypeForm.setDays(Integer.parseInt(request.getParameter("days")));
int ret = bookTypeDAO.update(bookTypeForm);
if (ret == 0) {
request.setAttribute("error", "修改图书类型信息失败！");
request.getRequestDispatcher("error.jsp")
.forward(request, response);
} else {
request.getRequestDispatcher("bookType_ok.jsp?para=2").forward(request,
response);
}
}
/*********************** 删除图书类型信息 **************************/
private void bookTypeDel(HttpServletRequest request,
HttpServletResponse response) throws ServletException, IOException {
BookTypeForm bookTypeForm = new BookTypeForm();
bookTypeForm.setId(Integer.valueOf(request.getParameter("ID")));
int ret = bookTypeDAO.delete(bookTypeForm);
if (ret == 0) {
request.setAttribute("error", "删除图书类型信息失败！");
request.getRequestDispatcher("error.jsp")
.forward(request, response);
} else {
request.getRequestDispatcher("bookType_ok.jsp?para=3").forward(request,
response);
}
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doGet(request, response);
}
}